Definitions
1.AdjectiveSuspecting rivalry in love; troubled by worries that one might have been replaced in someone's affections; suspicious of a lover's or spouse's fidelity. .mw-parser-output .defdate{font-size:smaller}"jealous lover; She gave him a jealous look."
2.AdjectiveProtective; zealously guarding; careful in the protection of something (or someone) one has or appreciates, especially one's spouse or lover.
3.AdjectiveEnvious; feeling resentful or angered toward someone for a perceived advantage or success, material or otherwise."be jealous of someone/something; He was jealous of his friend’s success.; I'm jealous because I'm single."
4.AdjectiveSuspicious; apprehensive.
5.VerbTo harass or attack (somebody) out of jealousy.
6.VerbTo deliberately make (someone) jealous of another person's (often their partner's) associations with other people.